Zefarch Trojan on PC running Internet Security 2011

Hi, I was wondering if anyone could help me. I am running a Samsung Netbook which became infected with Zefarch. The first symptom was Norton informing of numerous attempts to attack my system. I also found I was redirected to sites I did not select when I did Google searches.  I did a full system scan which detected Zefarch and said it had dealt with it. When I then rebooted I got the error message 'Error Loading edaqiqamalanunev.dll file. The specified module could not be found.'

 

I then occasionally would get the message "Generic host process for WIN32 services has encountered a problem' and i would lose my Internet Connection. I also noticed that even when I did have an Internet Connection I was unable to access Windows update as it said it was unable to connect. I then tried to download Windows Defender but I could not download updates for it. I tried to do a Windows System Restore but was unable to. Then I read that  the virus attacks Windows Systems Restore so I swtiched Systems Restore off which deleted the Restore Points.

 

I then used Norton Power Eraser which said it found a few files during the Local Search but when the Network search was done it then said 'No Known Threat' I did however decide to delete the ones the Local Search identified, but this made no difference.

 

I then downloaded Malwarebytes which found 3 infected files incloded one Rootkit and it then deleted these. However, I was still unable to access Windows update and my computer was still being attacked every 30 seconds or so.

 

As my Netbook is only used for surfing and holds no personal data, I thought I would wipe it and reinstall the OS, but the Samsung is not shipped with the OS. Samsung told me I could however use their System Restore to wipe the C drive completely and revert back to the factory presets. So I did that and that seemed to work as I lost all the software I had downloaded since I got the Netbook. When I booted up the error message 'Error Loading edaqiqamalanunev.dll file' did not happen and I was hopeful it had been fixed. However, now I still cannot run Windows Update, my netbook is still being constantly attacked and I am sometimes redirected to the wrong websites when i do Google searches.

 

I ran Norton Full scan in Safe mode but it found nothing wrong.

 

The Norton consultant I spoke to ask me to create a Bootable disk which I did and ran and which found no problems. The Consultant also asked me to do another ordinary Full Scan which I did and again no problems. At this point she told me there was nothing else to try but I could pay $99.99 to have someone wirelessly connect to my Netbook and fix the problem. Not having much confidence at all in Norton at this point, I decided not to go down that route.

 

Can anyone help me get rid of the symptoms of Zefarch on my Netbook? Norton tells me everything is fine, but it is not. It is a shame Samsung don't ship the OS disk with the Netbook or I would wipe the C drive myself just to make sure it is done completely.

 

Any help would be really appreciated. I am also now very concernec about my main PC which does hold lots of personal information. Although it is fully backed up, I now have no faith that Norton will protect it.